1. Client Management Date: 2017-04-25 Eldad Perahia HPE-Aruba
Name
Affiliation
Address
Phone
Eldad Perahia
HPE-Aruba
Eldad Perahia (HPE-Aruba), et. al.,

2. CID 5163 Comment Proposed Change
Regarding " a Duration-based RTS/CTS. In dense environments, managing RTS usage by an AP can help the overall interference situation since the AP may have better view of the network situation.", while this a good start in adding control by the AP over non-AP STAs other aspects of client management need to addressed. In an large, dense, managed ESS, the network has much better visibility into the best selection of AP and band that the client should initially associate with and then subsequently select during roaming. The network also needs to be able to control usage of probe request and probe response in an ESS in improve network efficiency.
Proposed Change
Add tighter management by the network of client association and roaming
Eldad Perahia (HPE-Aruba), et. al.,

3. BSS Transition Management (1/2)
ESS/BSS designed for capacity rather than coverage have relatively higher RSSI/MCS at the edge of BSS’s.
Therefore STA’s are able to hear multiple APs at similar RSSI levels making it difficult for the STA to pick the appropriate AP with which to associate
In order to maximize network efficiency in a dense ESS, the network needs to be able to direct these clients to associate/re-associate to the most appropriate AP
Eldad Perahia (HPE-Aruba), et. al.,

4. BSS Transition Management (1/2)
One method of doing so is via “Neighbor report information upon rejection with suggested BSS transition”, and the clients following the AP’s direction
Clients also need to use the information in the BSS Transition Management request to better inform its decision when roaming in a dense ESS.
Furthermore, we need to modify the Neighbor Report element to be HE aware
Eldad Perahia (HPE-Aruba), et. al.,

5. Managed ESS
To further assist the roaming capability of clients in a managed ESS, it would be helpful to indicate to the clients that they are in fact in a managed ESS and when they reach the physical edge of an ESS
APs that are at the edge of an ESS (e.g. APs near an exit to a stadium of office building) could broadcast such an indication so that clients could prepare for more aggressive roaming or switching to a different system
Eldad Perahia (HPE-Aruba), et. al.,

6. Interference Environment with SR
The AP/network management entity is also going to need information from the STAs engaging in Spatial Reuse
As SR changes the interference environment, the AP/network management entity needs information from the Beacon Report to map the interference environment and make intelligent SR parameter, channel number, and channel bandwidth settings
Without such information, STAs may cause undo interference and reduce network capacity, counter to the goal of Spatial Reuse
Eldad Perahia (HPE-Aruba), et. al.,

7. Spec Text
See document 17/0619
Eldad Perahia (HPE-Aruba), et. al.,